<template>
    <div style="padding: 10px;">
        <!--<Particles></Particles>-->
        <!--功能区域-->
        <div style="margin: 10px 0">
            <el-button type="success" round @click="add" v-if="user.role===1">新增</el-button>
            <el-button type="primary" round>导入</el-button>
            <el-button type="success" round>导出</el-button>
        </div>

        <!--搜索-->
        <div style="margin: 10px; text-align: center;margin-left: -120px;border-radius: 20px">
            <el-input @keyup.enter.native="load" v-model="search" placeholder="请输入关键字"
                      style="border-radius: 20px;width: 20%;" clearable=""></el-input>
            <el-button type="primary" style="margin-left: 7px" @click="load">查询</el-button>
        </div>

        <el-table
                :data="tableData"
                border
                stripe=""
                size="small"
                style="width: 100%">
            <el-table-column
                    prop="id"
                    sortable=""
                    label="ID">
            </el-table-column>
            <el-table-column
                    prop="username"
                    label="用户名">
            </el-table-column>
            <el-table-column
                    prop="nick"
                    label="昵称">
            </el-table-column>
            <el-table-column
                    prop="age"
                    label="年龄">
            </el-table-column>
            <el-table-column
                    prop="sex"
                    label="性别">
            </el-table-column>
            <el-table-column
                    prop="address"
                    label="住址">
            </el-table-column>
            <el-table-column label="角色">

                <template slot-scope="scope">
                    <!--<span v-if="scope.row.role===1">管理员</span>-->
                    <!--<span v-if="scope.row.role===2">普通用户</span>-->
                    <el-tag :type="scope.row.role === 1?'success':''">
                        {{scope.row.role === 1? '管理员': '普通用户'}}
                    </el-tag>
                </template>
            </el-table-column>
            <el-table-column
                    label="头像">
                <template slot-scope="scope">
                    <el-image
                            style="width: 45%; height: 45%;"

                            :src="scope.row.avatar"
                            :preview-src-list="[scope.row.avatar]">
                    </el-image>
                </template>
            </el-table-column>
            <el-table-column
                    width="170px"
                    fixed="right"
                    label="操作">
                <template slot-scope="scope">
                    <el-button title="拥有的图书列表" type="success" plain @click="showBooks(scope.row.bookList)">图书
                    </el-button>
                    <!--编辑-->
                    <el-button type="primary" title="编辑" @click="handleEdit(scope.row)" v-if="user.role===1"
                               icon="el-icon-edit" circle></el-button>

                    <!--删除-->
                    <el-button @click="handleDelete(scope.row.id)" title="删除"
                               slot="reference" type="danger" icon="el-icon-delete" circle
                               style="margin-left: 10px" v-if="user.role===1"></el-button>


                </template>
            </el-table-column>
        </el-table>


        <!--分页-->
        <div style="margin: 10px 0">
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="currentPage4"
                    :page-sizes="[5,10,20]"
                    :page-size="pageSize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total">
            </el-pagination>

            <el-dialog title="用户拥有的图书列表" :visible.sync="bookVis" width="30%">
                <el-table :data="bookList" stripe border>
                    <el-table-column prop="id" label="ID"></el-table-column>
                    <el-table-column prop="name" label="名称"></el-table-column>
                    <el-table-column prop="author" label="作者"></el-table-column>
                    <el-table-column prop="price" label="价格/元"></el-table-column>
                </el-table>
            </el-dialog>

            <!--新增-->
            <el-dialog

                    title="新增"
                    :visible.sync="dialogVisible"
                    width="30%">
                <el-form :model="form" label-width="120px">
                    <el-form-item label="用户名">
                        <el-input v-model="form.username" style="width: 80%"></el-input>
                    </el-form-item>
                    <el-form-item label="昵称">
                        <el-input v-model="form.nick" style="width: 80%"></el-input>
                    </el-form-item>
                    <el-form-item label="年龄">
                        <el-input v-model="form.age" style="width: 80%"></el-input>
                    </el-form-item>
                    <el-form-item label="性别">
                        <el-radio v-model="form.sex" label="男">男</el-radio>
                        <el-radio v-model="form.sex" label="女">女</el-radio>
                        <el-radio v-model="form.sex" label="未知">未知</el-radio>

                    </el-form-item>
                    <el-form-item label="地址">
                        <el-input type="textarea" v-model="form.address" style="width: 80%"></el-input>
                    </el-form-item>
                    <el-form-item label="角色">
                        <el-tag :type="form.role === 1?'success':''">
                            {{form.role === 1? '管理员': '普通用户'}}
                        </el-tag>
                        <el-select v-model="form.newRole" placeholder="请选择">

                            <el-option
                                    v-for="item in options"
                                    :key="item.value"
                                    :label="item.label"
                                    :value="item.value">
                            </el-option>
                        </el-select>
                    </el-form-item>
                    <el-form-item label="头像">
                        <el-upload
                                ref="upload"
                                action="http://127.0.0.1/files/upload"
                                :on-success="filesUploadSuccess"
                        >
                            <el-button size="small" type="primary">点击上传</el-button>

                        </el-upload>
                    </el-form-item>
                </el-form>

                <span slot="footer" class="dialog-footer">
    <el-button @click="dialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="save">确 定</el-button>
  </span>
            </el-dialog>
        </div>


    </div>
</template>

<script>
    // @ is an alias to /src

    import request from '../utils/request'
    import Particles from '../components/particles/index'

    export default {
        name: 'User',
        components: {Particles},
        data() {
            return {
                bookList: [],
                bookVis: false,
                options: [{
                    value: '1',
                    label: '管理员'
                }, {
                    value: '2',
                    label: '普通用户'
                }],
                form: {},
                user: {},
                //新增
                dialogVisible: false,
                search: '',
                //当前页
                currentPage4: 1,
                pageSize: 10,
                total: 0,
                roleName: "",
                tableData: []
            }


        },
        created() {
            let userStr = sessionStorage.getItem("user") || "{}"
            this.user = JSON.parse(userStr)
            this.load()
            //请求服务端，确认当前登录用户的 合法信息
            // request.get("/user/" + this.user.id).then(res => {
            //     if (res.code === '0') {
            //         this.user = res.data
            //     }
            // })
        },
        methods: {
            showBooks(books) {
                this.bookVis = true
                this.bookList = books

            },
            filesUploadSuccess(res) {
                console.log(res)

                this.form.avatar = res.data;
            },
            //查询
            load() {
                request.get('/users', {
                    params: {
                        pageNum: this.currentPage,
                        pageSize: this.pageSize,
                        search: this.search
                    }

                }).then(res => {
                    console.log(res)
                    this.tableData = res.data.records
                    this.total = res.data.total


                })
            },

            //新增
            add() {
                this.dialogVisible = true
                this.form = {} //清空输入的表单
                this.load()
                this.$nextTick(() => {
                    this.$refs['upload'].clearFiles() //清除历史文件列表
                })

            },
            //保存到后台
            save() {
                if (this.form.id) {
//    更新
                    if (this.form['newRole']) {
                        this.form.role = parseInt(this.form['newRole'])
                    }
                    request.put("/users", this.form).then(res => {
                        if (res.code == '0') {
                            this.$message({
                                message: '更新成功',
                                type: 'success',

                            });
                            this.load()
                        } else {
                            this.$message({

                                message: res.msg,
                                type: 'error',

                            })
                        }

                    })
                    this.dialogVisible = false
                    this.load()
                } else {
//    新增
                    request.post("/users", this.form).then(res => {
                        console.log(res)
                        this.dialogVisible = false
                        if (res.code == '0') {


                            this.$message({
                                message: '添加成功',
                                type: 'success',

                            });
                            this.load()
                        }

                        else {
                            this.$message({

                                message: res.msg,
                                type: 'error',

                            })
                        }
                    })
                }


            },
            //编辑
            handleEdit(row) {
                // role:{
                //      id:1,
                //      displayName: '管理员'
                // }
                this.form = JSON.parse(JSON.stringify(row))
                this.dialogVisible = true
                // this.roleName=(row.role===1 ?"管理员":"普通员工")
                this.$nextTick(() => {
                    this.$refs['upload'].clearFiles() //清除历史文件列表
                })
            },
            handleDelete(id) {

                this.$confirm('你确定要删除,是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(async () => {
                    request.delete("/users/" + id).then(res => {

                        this.$message({type: 'success', message: '删除成功!'})
                        this.load()
                    })
                }).catch(() => {
                    this.$message({type: 'success', message: '已取消删除'})
                })


            },
            //页码 每页的个数
            handleSizeChange(pageSize) {
                this.pageSize = pageSize
                this.load()
            },
            //改变当前页
            handleCurrentChange(pageNum) {
                this.currentPage = pageNum
                this.load()
            },

        }
    }
</script>

<style scoped>

    el-input {
        border-radius: 20px
    }
</style>
